This excerpt taken from the GPS 10-Q filed Dec 1, 2006.
With the adoption of SFAS 123(R) at the beginning of our first fiscal quarter of 2006, we added Share-Based Payment as a critical accounting policy and estimate.
We account for share-based payments in accordance with the fair value recognition provisions of SFAS 123(R). We use the Black-Scholes-Merton option-pricing model which requires the input of highly subjective assumptions. These assumptions include estimating the length of time employees will retain their vested stock options before exercising them, the estimated volatility of our common stock price over the expected term and the number of options that will ultimately not complete their vesting requirements. Changes in the subjective assumptions can materially affect the estimate of fair value of share-based payments and, consequently, the related amount recognized on the consolidated statements of income.
In the second quarter of fiscal 2006, we proactively reviewed our stock option granting practices over the 10-year period ended June 2006, given the heightened scrutiny regarding this topic. We concluded that the compensation expense recorded in our historical financial statements was materially correct. Specifically, we identified no backdating in connection with the grants of stock options to Vice Presidents and above. We found some errors relating to the dating of stock option grants to certain lower-level employees as well as some calculation errors. We finalized our review and recorded $4.5 million of additional compensation expense in the third quarter of fiscal 2006 related to historical stock option accounting.